Valve.



D. B. MEDANICH.

VALVE;

APPLICATION FILED JUNE 20, 1914.

1,176,769. PatentedMar. 28,1916.

WITNESSES.-

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motors,

Specification of Letters Patent.

Patented Mar. 28, 1916.

Application filed .lune 20, 1914. Serial No. 846,223.

To all whom it may concern:

Be it known that I, DANIEL B. MEDANICH, a citizen of the United States, residing at Buechel, in' the county of Jefferson and State of Kentucky, have invented certain new and useful Improvements in Valves, of which the following is a specification.

This invention relates to valves for use in and more especially to valves adapted to be used with explosive motors.

An object is to provide avalve which will be efiicient and durable in service, and which will be perfectly balanced.

Another object is to provide avalve of the piston type, which being surrounded by a Water jacket will operate under better conditions than the ordinary valve.

A further object is to provide a valve adapted, when serving as an exhaust valve, to be air cooled internally.

\Vith the foregoing, and other objects in view the invention consists of the novel construction and arrangement of parts illustrated in the accompanying drawing, which forms a part of this specification, in which is set forth an embodiment of the invention,- but it is to be undertsood that changes, variations and modifications may be resorted to which come within the scope of the appended claims.

Referring to the drawing, Figure 1, is a sectional view of a portion of an explosive motor with my valve applied, in elevation, as an exhaust valve; Fig. 2, is a side elevation of the same portion of the motor as Fig. 1; Fig. 3 is a view the same as Fig. l, but showing the valve in section and open; Figs. 4 and 5, are respectively elevation andloottom plan of means for turning the valve on its axis' In the drawing -1- designates der within which a piston -2-, cmistruction, operates. In Fig. 1, the piston is represented as being on the downward. or power stroke, the exhaust valve 3- being closed; in Fig. 3, the piston is represented as on the up, or exhaust stroke, driving out the products of combustion through the exhaust valve which is open. The valve is tubular and adapted toheincorporated within a bore -4- of a cylinder -5 which preferably, formed integral with the main cylinder. A water jacket -(5- envelope the main and valve cylinders. The valve a cylinof usual cylinder is open, at its lower end, to the atmosphere, and at its upper end hasa, flange 7 for the attachment of an exhaust pipe. An annular channel -8-, near the upper end of the bore at, encircles the valve 3 and serves to lead the gases, from the main cylinder, around the valve subjecting the valve to equal pressure on all sides and avoiding unequal wear, due to side pressure. ets 9- and l0- extended from the side of the main cylinder serve as guides for a valve rod 1 The rod 11 is attached to the-valve in such manner that the valve may rotate on the rod, the arrangement illustrated being as follows: On the upper end of the valve rod is a spherical enlargement, or ball .12-. A flanged cup -l3-, fitting about the rod and over the ball is secured to a diaphragm l l, positioned within and above the medial line of the valve, and serves to hold the rod in flexible connection with the valve. This method of connecting the rod to the valve not only permits the valve to turn independent of the rod, but assures that the valve will travel freely in the bore 4:, even though the rod should be slightly out of alinement, due to wear in the hearings, or other cause. A spring -15 coiled about the valve rod and resting on the bracket 9 and pressing against the diaphragm 14 serves to hold the valve closed, and to return it to the closed position when opened. A bell-crank lever -1ti, having a long arm --17 and a short arm -18, is so positioned that the long arm will engage an angular projection -1$l on the lower end of the valve rod and open the valve.

A cam -Q(l secured on a shaft ---2l-, receives motion .in the usual manner from a main crank shaft and impinging on the short arm of the lever 16 acts to' open the valve. t As the valve descends a lever 22-, which I'lOlllllll) stands at an angle. of up proximately 60 degrees, engages one of a series of projections or serrations -22----, on the lower end of the side wall of. the valve. the arrangement being such that as the lever assumes a horizontal position, being forced down by the valve. the valve will be turned a distance equal to the spacing of the serrations. The valve is prevented from overthrowing, or turning a distance greater; than the width ofa serration, by the end Brackthe lever binding on the the entrant angle thereof being substanmunicating with the interior thereof.

tially the same as that of the serrations. As the valve ascends, the lever 22 is returned to its normal position by a spring 2t-, or the overweighted end 25- (as shown in Fig. 4). such that each time the valve closes it seats in a changed position thus insuring equal wear on the seats. A spring'26-, coiled about the valve rod, and resting on the bracket 10, serves to cushion the descent of the valve, a collar -27-, attached to the valve rod, striking on the spring. The valve is open; at the lower end to the atmosphere and the diaphragm 14:is pierced with a plurality of perforations 28. A series of ribs 29- are positioned between the diaphragm and the top of the valve and con; tube -30- secured in the upper end of the valve extends up into the exhaust passage --31. As the products of combustion are forced out, through the passage 31, the rush thereof past the orifice of the tube 30 draws a current of air up through the'piston which flowing over the large radiating surface presented by theribs 29 serves to lower the temperature of the head of the valve to a point which is conducive to the longevity of the valve seat.

It is thought and the method of construction and use can be thoroughly understood from the foregoing. without more extended description.

Having thus described my invention so that any one skilled in the art pertaining thereto may make and use the same, I claim:

1. In mechanism of the class described, a valve, a valve rod to which sai valve is rotatably connected, means operable to engage with the advance edge of said valve and partially rotate same during its opening movement.

2. In mechanism of the class described, a tubular valve, a valve rod to which it is rotatably connected and mechanical means adapted to engage the advance edge of said valve and positively rotate same a predetermined distance during the opening movement thereof.

3. A valve cylinder, valve positioned therein, said valve open at its lower end to the atmosphere, and a tube in the upper end thereofextending into the exhaust passage.

4:. In an explosive motor, a power cylinder, a valve cylinder, said valve cylinder having an internal annular recess communicating with the power cylinder, a tubular piston valve open at its lower end posit oned in said valve cylinder, a tube in the upper end of the valve extending into the exhaust a tubular piston The arrangementjust described is.

passage, said valve being open at its lower end to the atmosphere.

6. In an explosive motor, a power cylinder, a va-lve'cylinder communicating with the power cylinder, said valve cylinder being openat its lower end to the atmosphere and having an exhaust passage leading from its upper end, atubular valve positioned in said valve cylinder and adapted to be reciprocated to open and close said exhaust passage, said valve being open at its lower end to the atmosphere, and a tubular projection extended from the upper end of'the valve into said exhaust passage.

7; In an explosive motor, a power cylinder, a valve cylinder communicating with the power cylinder, said valve cylinder being open at its lower end and having an exhaust passage leading from its upper end, a tubular. valve positioned in said valve j cylinder and adapted .to be reciprocated to that the many advantages,

open and close said exhaust passage, said valve being-open at its lower end to the atmosphere, a plurality of serrations on the side wall of said valve at the open end thereof, a pawl adapted to engage with said serrations, and a tubular projection extends ed from the upper end of the valve into said exhaust passage.

8. In an explosive motor, a power cylinder, a valve cylinder having an exhaust passage leading from the upper end thereof, the lower end thereof. being open tothe atmosphere, an internal annular tapering valve seat in the upper end there of, a tubular piston valve, the head whereof is adapted to close on said seat, said vrlve being open at its lower end to theatmosphere, and a tube extended from its upper end into said exhaust passage whereby escaping gases draw air through said piston to cool same.

9. In an explosive motor, a power cylinder, a valve cylinder, having an exhaust passage leading from its upper end, the lower end thereof being open to the atmosphere, an internal annular valve seat in the upper end thereof, a tubular piston valve, the head whereof is adapted to close on said 'seat, a valve rod to which said valve is rotatably connected, said valve being open at its lower end to the atmosphere, and a tube extended from its upper end into said exhaust pasend thereof, a tubular piston sage whereby escaping gases draw air through said piston to cool same.

10. In an explosivemotor, a power cylinder, a valve cylinder having an exhaust passage leading from its upper end, the lower end thereof being open to the atmosphere, an internal annular valve seat in the upper valve; the head whereof is adapted to close on said seat, means engageable with said valve to partially rotate same during. its opening movement, said valve being open at its lower end to the atmosphere, and a tube extended from its upper end into said exhaust passage whereby escaping gases draw air through said piston to cool same.

11. In an explosive motor, apower cyllnder, a valve cylinder having an exhaust passage leading from its upper end, the.lower end thereof, being open to the atmosphere, an internal annular valve seat in the upper end thereof, a tubular piston valve, the head whereof is adapted to close onsaid seat, a valve rod connected to said valve by means of a ball and socket joint, said valve being open at its lower end to the atmosphere, and a tube extended from its upper end into said exhaust passage whereby escaping gases draw air through said piston to cool same.

12. In an explosive motor, a power cylinder, a valve cylinderhaving an exhaust passage leading from its upper end, the lower end being open to the atmosphere, an internal annular valve seat in the upper end thereof, a tubular piston valve, the head whereof is adapted to close on said seat, serrations on the lower end of the valve, a pawl adapted to engage with said serrations and partially rotate said valve during its opening movement, said valve being open at its lower end to the atmosphere, and a tube extended from its upper end into said exhaust passage whereby escaping gases draw air through said piston to cool same.

13. In an explosive motor, a valve cylinder open at one end to the atmosphere having an exhaust passage leading from the other end in a prolongation of the axis thereof, a tubular piston valve positioned within said cylinder the head whereof is adapted to close said exhaust passage, the outer end of said valve being open to the atmosphere, a Valve rod to which said valve is rotatably connected, a; series of projections on the outer end of the side Wall of said valve and means adapted to engage .said projections and partially rotate said valve during the opening movement thereof.

14. In an explosive motor, der,'a valve cylinder having sage leading a power cylinan exhaust pasfrom the upper end, the lower end thereof being open to .the atmosphere, an internal annular valve seat in the upper end thereof, a tubular piston valve, the head whereof is adapted to close on said seat, means engageable with said valve to par-- tially rotate same during its opening movement, and a valve rod to which said valve is rotatably connected. v

15. In an explosive motor, a power cylinder, a valve cylinder having an exhaust passage leading from the upper end, the lower end being open to the atmosphere, an internal annular valve seat in the upper end thereof, a tubular piston valve, the head whereof is adapted to close on said seat, a valve rod connected to said valve of a ball and socket joint, and means for partially rotating said valve at each opening stroke. a.

16. A valve cylinder ,open at one end to the atmosphere, a tubular piston valve likewise open to the atmosphere positioned within said cylinder, serrations on the side wall of said valve at the open end thereof and means engageable with said serrations to partially rotate said valve during the opening movement thereof,

17. A valve cylinder open at one end to the atmosphere, a tubular piston valve likewise open to' the atmosphere positioned by means within said cylinder, serrations on the end of v the side wall of said valve at the open end thereof, and a pawl adapted to engage with said serrations to partially rotate said valve during the opening movement thereof.

18. A valve cylinder, a tubular piston valve open at one end to the atmosphere positioned therein, means adapted to engage with the side wall of said valve at the outer end thereof and partially rotate same during its opening movement.

DANIEL B. MEDANICH.

Witnesses:

O. H. KELsALL, JOHN R. \Vnmn'r. 

